Improvement in cotton-gins



UNITED STATES PATENT` OFFICE.- ,f 1

BARTON I-I. JENKS AND WM. A. TU'ITLE, OF PHILADELPHIA, PA.

IMPROVEMENT IN C OTTONGINS.1

Specification forming part of Letters Patent No. 26,68 l dated.Ianunrylh lGO.

I the ginning cylinder and brush. Fig. 2 is an end view, with the doorremov'ed.

Our improvement consists in surrounding a portion of thegrinning-cylinder with smooth metallic bands or ribs, so placed as to beconcentric, or nearly so, with their outer surface, and just above theline of the points ofthe gin-roller. These bands or ribs are shown at AA A A, Src. They are placed about onehalf inch apart, (more or less,)and are from -onethirty second to onesixteenth of an inch (more or less)in thickness and aboutoneeighth of an inch (more or less) in width. Theyare placed over that portion of the ginning-cylinder upon which thecotton is placed, and where the principal portion of the ginning isdone, and are concentric, or nearly so, with the circumference. `Theunder side of these bands are immediately upon the extremity of theteeth of the cylinder, or might be placed beneath the surface of thecylinder in concentric groves, provided the upper surface projects, asstated, beyond the extremity of the teeth 0f the cylinder.

In the drawings, B represents the ginningroller; c, the brush. The bandsare fastened at D by a staple or any other mode to the inclined board E,and at the other end, F, by a screw and nut, or in any other convenientmanner.

The operation of this machine is as follows: The cotton to be ginned isthrown inthrough the opening G, and falls and in part rests upon and issupported by thesmooth metallicbands A A A A A, Src. These `bandssupporti the material in part thrown in, and as gin-teeth u revolve thefriction createdby part of the Ina- H terial resting on these `bands anda part car-` ried forward by the gin-teeth causes a ginning operationalong the whole length of the rib.

rlhe ribs also prevent fthe trash from being acted upon by thegin-teeth. The seeds fall` through the opening H, while the ,cottoniscarried up, and the nal 'ginning is done at K against eithera movablerevolving doctor, or in any other convenient manner. The advantage ofthe bands is thatthe ginning is effected` more expeditiously and in a`superior manner by reason of the `operationfbeing performed l over alarge' portion `of the; cylinder, instead.`

of exclusively at the point K, and the trash is not taken up and mixedwith the staple.`

Thesize and relative position of themetallic bands might be variedwithout affecting the operation of the machine.

Having thus described ourimprovement,` what we claim as our invention,and desire to secure by Letters Patent, is-

The arrangement of `stationary metallic Y bands AA A A A, Src., arrangedconcentric with and around either the whole 0r a part of thecircumference of the gin-cylinderand just above the end of thegin-teeth, in the manner and for the purpose herein specified.;`

BARTON H. JENKs i wM. A. TUTTLE.

' Witnesses:

F. DOEBELY, SAMI.. O. SHoUsE.

